CN1575072A - Providing an emission-protecting layer in an OLED device - Google Patents
Providing an emission-protecting layer in an OLED device Download PDFInfo
- Publication number
- CN1575072A CN1575072A CNA2004100387059A CN200410038705A CN1575072A CN 1575072 A CN1575072 A CN 1575072A CN A2004100387059 A CNA2004100387059 A CN A2004100387059A CN 200410038705 A CN200410038705 A CN 200410038705A CN 1575072 A CN1575072 A CN 1575072A
- Authority
- CN
- China
- Prior art keywords
- layer
- protective layer
- emission
- organic
- surface contamination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 100
- 238000011109 contamination Methods 0.000 claims abstract description 24
- 230000004044 response Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 97
- 239000011241 protective layer Substances 0.000 claims description 88
- 238000000034 method Methods 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 13
- 230000027756 respiratory electron transport chain Effects 0.000 claims description 12
- 239000002019 doping agent Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 claims description 2
- 230000006798 recombination Effects 0.000 abstract description 3
- 238000005215 recombination Methods 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 31
- 125000003118 aryl group Chemical group 0.000 description 26
- -1 pottery Substances 0.000 description 20
- 238000000151 deposition Methods 0.000 description 18
- 238000001704 evaporation Methods 0.000 description 18
- 230000008020 evaporation Effects 0.000 description 18
- 230000008021 deposition Effects 0.000 description 16
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 15
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 150000001412 amines Chemical class 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 238000000465 moulding Methods 0.000 description 10
- 230000007613 environmental effect Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 125000005259 triarylamine group Chemical group 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 235000010290 biphenyl Nutrition 0.000 description 7
- 239000004305 biphenyl Substances 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 238000005401 electroluminescence Methods 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- OBAJPWYDYFEBTF-UHFFFAOYSA-N 2-tert-butyl-9,10-dinaphthalen-2-ylanthracene Chemical compound C1=CC=CC2=CC(C3=C4C=CC=CC4=C(C=4C=C5C=CC=CC5=CC=4)C4=CC=C(C=C43)C(C)(C)C)=CC=C21 OBAJPWYDYFEBTF-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 6
- 150000001721 carbon Chemical group 0.000 description 6
- 239000010406 cathode material Substances 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 125000001624 naphthyl group Chemical group 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000010405 anode material Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002848 electrochemical method Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 125000000623 heterocyclic group Chemical group 0.000 description 4
- 150000002475 indoles Chemical class 0.000 description 4
- 238000007641 inkjet printing Methods 0.000 description 4
- 150000002790 naphthalenes Chemical class 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- HXWWMGJBPGRWRS-CMDGGOBGSA-N 4- -2-tert-butyl-6- -4h-pyran Chemical compound O1C(C(C)(C)C)=CC(=C(C#N)C#N)C=C1\C=C\C1=CC(C(CCN2CCC3(C)C)(C)C)=C2C3=C1 HXWWMGJBPGRWRS-CMDGGOBGSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 3
- 125000001118 alkylidene group Chemical group 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 125000003983 fluorenyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 150000004880 oxines Chemical class 0.000 description 3
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- NBYLBWHHTUWMER-UHFFFAOYSA-N 2-Methylquinolin-8-ol Chemical compound C1=CC=C(O)C2=NC(C)=CC=C21 NBYLBWHHTUWMER-UHFFFAOYSA-N 0.000 description 2
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 125000002541 furyl group Chemical group 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 125000001072 heteroaryl group Chemical group 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 2
- LVUMZEZHYQEUEO-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)pyren-2-amine Chemical group C1=CC=CC=C1N(C=1C(=CC=CC=1)C=1C=CC=CC=1)C1=CC2=CC=C(C=CC=C3C=C4)C3=C2C4=C1 LVUMZEZHYQEUEO-UHFFFAOYSA-N 0.000 description 2
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 2
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000553 poly(phenylenevinylene) Polymers 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 125000005493 quinolyl group Chemical group 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000003107 substituted aryl group Chemical group 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 125000001544 thienyl group Chemical group 0.000 description 2
- 238000001429 visible spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 1
- KMQPLEYEXDZOJF-UHFFFAOYSA-N 1-naphthalen-2-ylanthracene Chemical compound C1=CC=C2C=C3C(C4=CC5=CC=CC=C5C=C4)=CC=CC3=CC2=C1 KMQPLEYEXDZOJF-UHFFFAOYSA-N 0.000 description 1
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 1
- XNCMQRWVMWLODV-UHFFFAOYSA-N 1-phenylbenzimidazole Chemical compound C1=NC2=CC=CC=C2N1C1=CC=CC=C1 XNCMQRWVMWLODV-UHFFFAOYSA-N 0.000 description 1
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- QCRMNYVCABKJCM-UHFFFAOYSA-N 5-methyl-2h-pyran Chemical compound CC1=COCC=C1 QCRMNYVCABKJCM-UHFFFAOYSA-N 0.000 description 1
- VIJYEGDOKCKUOL-UHFFFAOYSA-N 9-phenylcarbazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2C2=CC=CC=C21 VIJYEGDOKCKUOL-UHFFFAOYSA-N 0.000 description 1
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical class C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- SZVKJTDZEOTYCX-UHFFFAOYSA-N CN(C1=CC(=C(C=C1)CC1=CC=CC=C1)CN)C Chemical compound CN(C1=CC(=C(C=C1)CC1=CC=CC=C1)CN)C SZVKJTDZEOTYCX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000819038 Chichester Species 0.000 description 1
- PQMOXTJVIYEOQL-UHFFFAOYSA-N Cumarin Natural products CC(C)=CCC1=C(O)C(C(=O)C(C)CC)=C(O)C2=C1OC(=O)C=C2CCC PQMOXTJVIYEOQL-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FSOGIJPGPZWNGO-UHFFFAOYSA-N Meomammein Natural products CCC(C)C(=O)C1=C(O)C(CC=C(C)C)=C(O)C2=C1OC(=O)C=C2CCC FSOGIJPGPZWNGO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 241001597008 Nomeidae Species 0.000 description 1
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- GENZLHCFIPDZNJ-UHFFFAOYSA-N [In+3].[O-2].[Mg+2] Chemical compound [In+3].[O-2].[Mg+2] GENZLHCFIPDZNJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000033 alkoxyamino group Chemical group 0.000 description 1
- 125000003282 alkyl amino group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 125000005577 anthracene group Chemical group 0.000 description 1
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 1
- 229940054051 antipsychotic indole derivative Drugs 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000001769 aryl amino group Chemical group 0.000 description 1
- 125000000732 arylene group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000005266 diarylamine group Chemical group 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- UBEMYRQUSQCJGU-UHFFFAOYSA-N n,n-dinaphthalen-1-ylnaphthalen-2-amine Chemical class C1=CC=C2C(N(C=3C4=CC=CC=C4C=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=CC2=C1 UBEMYRQUSQCJGU-UHFFFAOYSA-N 0.000 description 1
- DCZNSJVFOQPSRV-UHFFFAOYSA-N n,n-diphenyl-4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC=CC=C1N(C=1C=CC(=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 DCZNSJVFOQPSRV-UHFFFAOYSA-N 0.000 description 1
- VCKILGHOSVMDPW-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)-1,2-dihydroacenaphthylen-3-amine Chemical group C1=CC(C2=3)=CC=CC=3CCC2=C1N(C=1C(=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 VCKILGHOSVMDPW-UHFFFAOYSA-N 0.000 description 1
- XUUJSQNZFJMLHV-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)anthracen-9-amine Chemical group C1=CC=CC=C1N(C=1C2=CC=CC=C2C=C2C=CC=CC2=1)C1=CC=CC=C1C1=CC=CC=C1 XUUJSQNZFJMLHV-UHFFFAOYSA-N 0.000 description 1
- GIFAOSNIDJTPNL-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)naphthalen-1-amine Chemical group C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=CC=C1C1=CC=CC=C1 GIFAOSNIDJTPNL-UHFFFAOYSA-N 0.000 description 1
- KOHOWJPDSFTMLH-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)naphthalen-2-amine Chemical group C1=CC=CC=C1N(C=1C(=CC=CC=1)C=1C=CC=CC=1)C1=CC=C(C=CC=C2)C2=C1 KOHOWJPDSFTMLH-UHFFFAOYSA-N 0.000 description 1
- XIENSVDGJFYZGF-UHFFFAOYSA-N n-phenyl-n-(2-phenylphenyl)phenanthren-2-amine Chemical group C1=CC=CC=C1N(C=1C(=CC=CC=1)C=1C=CC=CC=1)C1=CC=C2C3=CC=CC=C3C=CC2=C1 XIENSVDGJFYZGF-UHFFFAOYSA-N 0.000 description 1
- USPVIMZDBBWXGM-UHFFFAOYSA-N nickel;oxotungsten Chemical compound [Ni].[W]=O USPVIMZDBBWXGM-UHFFFAOYSA-N 0.000 description 1
- YCWSUKQGVSGXJO-NTUHNPAUSA-N nifuroxazide Chemical group C1=CC(O)=CC=C1C(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 YCWSUKQGVSGXJO-NTUHNPAUSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229960003540 oxyquinoline Drugs 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229960001296 zinc oxide Drugs 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/18—Carrier blocking layers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/351—Metal complexes comprising lanthanides or actinides, e.g. comprising europium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
An organic light-emitting device with improved performance including an anode formed over a substrate; a hole-transporting layer formed over the anode; and a light-emitting layer formed over the hole-transporting layer for producing light in response to hole-electron recombination. The organic light-emitting device also includes an emission-protecting layer formed over the light-emitting layer, wherein the emission-protecting layer includes one or more materials selected to resist the surface contamination on the organic light-emitting layer and to ensure that there will be less surface contamination than if such layer had not been provided; an electron-transporting layer formed over the emission-protecting layer; and a cathode formed over the electron-transporting layer.
Description
Technical field
The present invention relates to minimize the pollution of luminescent layer in organic electroluminescent (EL) device.
Background technology
Organic electroluminescent (EL) device or Organic Light Emitting Diode (OLED) are the luminous electronic devices of response applying electrical potential.The OLED structure comprises anode, organic EL medium and negative electrode successively.Place the organic EL medium between anode and the negative electrode to form by organic cavity transmission layer (HTL) and organic electron transport layer (ETL) usually.Hole and electron recombination (recombine) and in ETL the HTL/ETL near interface luminous.Tang etc. " Organic Electroluminescent Diodes ", Applied Physics Letters, 51,913 (1987), and US-A-4,769,292 show the very effectively OLED that uses such layer structure.Since then, multiple OLED with alternating laminated structure is disclosed.For example, there are three layers of OLED that comprise organic luminous layer (LEL) between HTL and the ETL, " Electroluminescence in OrganicFilms with Three-Layer Structure ", Japanese Journal of Applied Physics such as Adachi for example, 27, those disclosed among the L269 (1988), Tang etc. " Electroluminescence of Doped Organic ThinFilms ", Journal of Applied Physics, 65,3610 (1989) those disclosed.LEL is made up of with guest materials the material of main part interpolation usually.Wherein layer structure is expressed as HTL/LEL/ETL.In addition, can there be other multilayer OLED that comprises the greater functionality layer in the device.Simultaneously, many kinds of EL materials and this EL material is used for OLED have also been synthesized.These new constructions and new material have further improved device performance.
Known, most EL material is to oxygen and/or moisture content and/or other composition sensitivity.For example, three (oxine) aluminium (Alq) is known to react [F.Papadimitrakopoulos etc. with water, " A Chemical FailureMechanism for Aluminum (III) 8-Hydorxyquinoline Light-Emitting Devices ", Chem.Mater.8,1363 (1996)].Use vacuum or hypoxemia and/or water condition can help to reduce the failure rate of OLED device during the device fabrication steps.Yet, during the deposition step between or when device existed device transmission or delay between step, device may accidental be polluted by oxygen, moisture content and/or other composition.Inject obstacle owing to luminescence queenching and/or by the caused more carrier of contaminant, this may produce relatively poor EL performance.
In panchromatic organic display, there is for example array of red, green and blue color (being commonly referred to rgb pixel) of color pixel.Need the precision of colored LEL to form pattern to produce rgb pixel.Make rgb pixel by several steps, every kind of colored LEL needs its own specific formation pattern and evaporation step.Only have after all three colored LEL become pixel, could on the colour element top, make subsequently common ETL and other common layer.Therefore, during each pixel forms pattern step and between pixel formation pattern step and the manufacturing of ETL subsequently, there is certain stand-by period.At waiting time, single colored LEL surface is exposed to the environment that contains different color molecules.Therefore, although be under the vacuum environment, pollution is inevitable.As a result, the pixel of pollution may have relatively poor EL performance, for example original suddenly luminous decline, or relatively poor operational stability.In addition, sometimes, before the manufacturing step that continues subsequently, LEL has to be exposed to atmosphere a period of time.In this case, the LEL surface that is exposed to air is seriously polluted by moisture content and other undesirable composition, causes relatively poor EL performance.In addition, during using polymer to make some type OLED as LEL (polymer OLED), rotary coating or inkjet printing LEL have to carry out with certain temperature the annealing of a period of time before the manufacturing step that carries out subsequently.Therefore, annealing surface is also seriously polluted by undesirable composition and causes relatively poor EL performance.
Summary of the invention
Therefore the objective of the invention is to reduce the surface contamination influence of OLED device EL performance.
Use the following organic luminescent device that improves performance to realize the object of the invention, this device comprises:
A) anode that on base material, forms;
B) hole transmission layer that on anode, forms;
What c) form on hole transmission layer is used for compound in response to both hole and electron and luminescent layer generation light;
D) the emission protective layer that forms on luminescent layer is wherein launched material that protective layer comprises one or more selections resisting the surface contamination on the organic luminous layer, and if guarantee that surface contamination is not when providing this layer;
E) electron transfer layer that on the emission protective layer, forms; With
F) negative electrode that on electron transfer layer, forms.
Advantage of the present invention is can reduce the OLED device because oled layer is exposed to air or because production period postpones the light loss of generation.Further advantage is to have the operational stability of improvement according to the OLED device that the present invention produces.
Description of drawings
Fig. 1 demonstrates the cross-sectional view of existing technology OLED device;
Fig. 2 demonstrates an embodiment cross-sectional view according to the OLED device that has the emission protective layer on luminescent layer of the present invention's preparation;
Fig. 3 demonstrates the block diagram that the inventive method comprises step; With
Fig. 4 demonstrates the block diagram that the inventive method comprises step.
Because device feature size for example layer thickness often changes in sub-micrometer range, the ratio of picture is convenient to Observe, size is inaccurate.
Term " pixel " in its this area approval is used, be used for indicating display board is independent of other zone can With by the zone of stimulating light emission. Term " OLED device " is used for representing to comprise with its this area approval meaning Organic Light Emitting Diode is also referred to as organic luminescent device as the display device of pixel. Color OLED device Send the light of at least a color. Term " polychrome " is used for being described in zones of different can launch different tones (hue) display board of light. Especially, use it to describe the display board that can show the different colours image. These zones are not necessarily adjacent. Term " panchromatic " is used for description can produce visible spectrum red, green, blue zone Light, and show the colored display board of image with any shade combinations. Red, green, blue consists of three primary colors, and is suitable Local these three primary colors that mix can produce all other colors. Term " tone " refers to light emission in the visible spectrum Brightness (profile), different tones demonstrates the visual noticeable difference of color. Pixel or sub-pixel (subpixel) the general addressable unit that is used for indicating the display board minimum. Show pixel for monochrome Or as broad as long between the sub-pixel. Term " sub-pixel " is used for the multicolor displaying plate, and is used for indicating appointing of pixel What part, it can be by addressing independently to launch specific color. For example, blue sub-pixel is that pixel is passable Addressed to produce the part of blue light. In full-color display, pixel generally comprises three primary color sub-pixel, Namely blue, green and red.
Referring now to Fig. 1,, demonstrates the cross-sectional view of existing technology OLED device. OLED device 100 bags Draw together base material 10. Base material 10 may for the combination of organic solid, inoganic solids, organic and inoganic solids to provide The surface is used for from accepting organic material to body. Base material 10 can for rigidity or flexible, can be used as separately Sheet for example sheet or wafer processes, or process as continuous roller (roll). Typical substrate material comprises Glass, plastics, metal, pottery, semiconductor, metal oxide, conductor oxidate, semiconducting nitride Thing or its combination. Base material 10 can be the homogeneous mixture of material, compound or the multilayer material of material. Base Material 10 can be the OLED base material, namely is generally used for preparing the base material of OLED device, for example, and active matrix Low temperature polycrystalline silicon TFT base material. Base material 10 can be printing opacity or lighttight, depends on the light emission direction of wanting. Need the transmitance energy for observe the EL emission by base material. Usually use in the case clear glass or mould Material. For wherein observing the luminous application of EL by top electrodes, the feature of bottom carrier transmission is inessential , can be light transmissive, light absorbing therefore or the light reflection. The base material of this situation of being used for comprises still Be not limited to glass, plastics, semi-conducting material, pottery, with circuit board material or any other common usefulness In the material that forms the OLED device, the OLED device can be passive matrix device or active-matrix device.
Form anode 20 at base material 10. When observing the EL emission by base material 10, anode should be to feeling emerging The emission of interest is transparent or in fact transparent. Can be used for normal transparent anode material of the present invention is oxidation Tin indium and tin oxide, but other metal oxide can be used, and this other metal oxide comprises but does not limit In aluminium or indium doping zinc-oxide, indium oxide magnesium and nickel tungsten oxide. Except these oxides, metal nitrogen Compound for example gallium nitride, metal selenide for example zinc selenide and metal sulfide for example zinc sulphide can be used as Anode material. For wherein observing the luminous application of EL by top electrodes, the transmission feature of anode material is Unessential, can use any conductive material, no matter whether be transparent, opaque or reflection. With Conductor example in these application includes, but are not limited to gold, iridium, molybdenum, palladium and platinum. Transmission or in addition The preferred anodes material have 4.1eV or bigger work content. Required anode material uses any suitable method For example evaporation, sputter, chemical vapor deposition or electrochemical method deposit. Anode material can use Known photoetching process forms pattern.
Although not necessarily always need, usually usefully in OLED, form at anode 20 Hole injection layer 22. The film-shaped that hole-injecting material can be used for improving organic layer subsequently becomes performance, and Promote hole injected hole transport layer. The material that is suitable for hole injection layer 22 include, but are not limited to as Be disclosed in US-A-4,720,432 porphyrins (porphyrinic) compound and as be disclosed in US-A-6,208,075 Plasma-deposited fluorocarbon polymer. It is reported that the other hole-injecting material that can be used for organic EL device is open In EP0891 121 A1 and EP 1,029,909 A1.
Although not necessarily always need, usually on hole injection layer 22, if or do not use the hole to annotate Entering layer is useful at anode 20 formation hole transmission layers 24. Required hole mobile material can use any The for example evaporation of suitable method, sputter, chemical vapor deposition, electrochemical method, heat shift or LASER HEAT Transfer deposits from donor material. The known hole mobile material that can be used for hole transmission layer 24 comprises chemical combination Thing is aromatic uncle amine for example, and wherein the latter is that a kind of compound comprises at least one and only is bonded to three on the carbon atom The valency nitrogen-atoms, at least one carbon atom is on aromatic ring. Aromatic uncle amine can arylamine, for example monoarylamine, Diaryl amine, triarylamine or polymer arylamine. Klupfel etc. are at USA 3,180, have enumerated three virtues in 730 The example of base amine monomers. Brantley etc. are at US-A-3, disclose other in 567,450 and US-A-3,658,520 What be fit to is replaced and/or comprises the triarylamine that at least one contains active hydrogen group by one or more vinyl.
More preferably the aromatic uncle amine of classification comprises at least two aromatic uncle amine parts, as is disclosed in US-A-4,720,432 and US-A-5,061,569. This compound comprises the compound with structural formula A representative.
Wherein:
Q
1And Q2Be independently selected from the aromatic uncle amine part; With
G is for example arlydene, ring alkylidene or the alkylidene of carbon-carbon bond of linking group.
In one embodiment, at least one Q
1Or Q
2The fused rings structure that comprises many rings, for example naphthalene.When G is aryl, be generally phenylene, biphenylene, naphthalene part.
One class satisfies structural formula A and comprises two triaryl amines useful classification triarylamine partly to be represented with structural formula B.
Wherein:
R
1And R
2Each independently represents hydrogen atom, aryl or alkyl, perhaps R
1And R
2Together the atom of cycloalkyl is finished in representative; With
R
3And R
4Each represents aryl independently, and it is replaced by the amino that diaryl replaces successively, as representing with structural formula C.
R wherein
5And R
6It is the independent aryl of selecting.In one embodiment, at least one R
5Or R
6The fused rings structure that comprises many rings, for example naphthalene.
Another kind of aromatic uncle amine is four aryl diamines.Desirable four aryl diamines comprise two ammonia diaryl bases that connect by arlydene, for example represent with general formula C.Four useful aryl diamines comprise those that represent with general formula D.
Wherein:
Each Are is the independent arylene group of selecting, for example phenylene or anthracene part;
N is from 1 to 4 integer; With
Ar, R
7, R
8And R
9It is the independent aryl of selecting.
In typical embodiment, at least one Ar, R
7, R
8And R
9Be the fused rings structure of many rings, for example naphthalene.
A plurality of alkyl of said structure formula A, B, C, D, alkylidene, aryl and arlydene part can each be substituted successively.Typical substituting group comprises alkyl, alkoxyl, aryl, aryloxy group and halogen for example fluorine root, chlorine root and bromine root.Multiple alkyl and alkylene moiety comprise 1 usually to about 6 carbon atoms.Cycloalkyl moiety can comprise 3 to about 10 carbon atoms, but comprises 5,6 or 7 carbon atoms for example cyclopenta, cyclohexyl and suberyl circulus usually.Aryl and arlydene partly are generally phenyl and phenylen moiety.
Hole transmission layer in the OLED device can be formed by the mixture of single aromatic uncle amine compound or aromatic uncle amine compound.Particularly, people can use triarylamine, and the triarylamine that for example satisfies Formula B makes up for example four aryl diamines represented of general formula D of four aryl diamines.When triarylamine and four aryl diamines are used in combination, the latter inserts triarylamine as one deck and electronics injects and transport layer between layer.It is as follows to enumerate the useful aromatic uncle amine of explanation:
1, two (4-two-p-methylphenyl aminophenyl) cyclohexanes of 1-
1, two (4-two-p-methylphenyl aminophenyl)-4-cyclohexylbenzenes of 1-
4,4 '-two (diphenyl amino) tetraphenyl
Two (4-dimethylamino-2-aminomethyl phenyl)-toluene
N, N, N-three (p-methylphenyl) amine
4-(di-p-tolyl amino)-4 '-[4 (di-p-tolyl amino)-styryl] Stilbene
N, N, N ', N '-four p-methylphenyls-4-4 '-benzidine
N, N, N ', N '-tetraphenyl-4,4 '-benzidine
The N-phenyl carbazole
Poly-(N-vinylcarbazole)
N, N '-two-1-naphthyl-N, N '-diphenyl-4,4 '-benzidine
4,4 '-two [N-(1-naphthyl)-N-phenylamino] biphenyl
4,4 " para-terpheny-two [N-(1-naphthyl)-N-phenylamino]
4,4 '-two [N-(2-naphthyl)-N-phenylamino] biphenyl
4,4 '-two [N-(3-acenaphthenyl)-N-phenylamino] biphenyl
1, two [N-(1-the naphthyl)-N-phenylamino] naphthalenes of 5-
4,4 '-two [N-(9-anthryl)-N-phenylamino] biphenyl
4,4 " para-terpheny-two [N-(1-anthryl)-N-phenylamino]
4,4 '-two [N-(2-phenanthryl)-N-phenylamino] biphenyl
4,4 '-two [N-(8-fluoranthene base)-N-phenylamino] biphenyl
4,4 '-two [N-(2-pyrenyl)-N-phenylamino] biphenyl
4,4 '-two [N-(2-aphthacene base)-N-phenylamino] biphenyl
4,4 '-two [N-(2-perylene base)-N-phenylamino] biphenyl
4,4 '-two [N-(the cool base of 1-)-N-phenylamino] biphenyl
2, two (the two pairs of toluidinos) naphthalenes of 6-
2, two [two (1-naphthyl) amino] naphthalenes of 6-
2, two [N-(1-naphthyl)-N-(2-naphthyl) amino] naphthalenes of 6-
N, N, N ', N '-four-(2-naphthyl)-4,4 "-the diaminourea para-terpheny
4,4 '-two { N-phenyl-N-[4-(1-naphthyl)-phenylamino } biphenyl
4,4 '-two [N-phenyl-N-(2-pyrenyl) amino] biphenyl
2, two [N, N-two (2-naphthyl) amine] fluorenes of 6-
1, two [N-(1-the naphthyl)-N-phenylamino] naphthalenes of 5-
Another kind of useful hole mobile material comprises as being disclosed in the poly-ring aromatic compounds of EP 1 009 041.In addition, can use polymer hole mobile material for example poly-(N-vinylcarbazole) (PVK), polythiophene, polypyrrole, polyaniline and copolymer poly-(3,4-ethylidene dioxy thiophene)/poly-(4-styrene sulfonate) for example, be also referred to as PEDOT/PSS.
Layer in anode 20 and any other formation for example forms the LEL 26 that produces photoresponse hole-electron recombination on the hole transmission layer 24.Required luminous organic material can use for example evaporation of any suitable method, sputter, chemical vapor deposition, electrochemical method or radiant transfer to deposit from donor material.Useful luminous organic material is known.As at US-A-4,769,292 and US-A-5,935,721 describe more comprehensively, and organic EL composition (element) LEL 26 comprises luminous or fluorescent material, wherein in the compound generation electroluminescence of this zone electron hole pair.LEL 26 can be made up of homogenous material, but more generally comprises the material of main part that is doped with guest compound or dopant, and wherein the light emission is mainly from alloy with can have any color.Material of main part among the LEL 26 can be for according to undefined electron transport material, and according to the hole mobile material of above-mentioned definition, or another kind is supported the compound material of both hole and electron.Dopant is selected from high fluorescent dye usually, but the phosphorescent compound that is disclosed in WO 98/55561, WO 00/18851, WO 00/57676 and WO 00/70655 for example transition metal complex also be useful.Dopant is applied to material of main part with 0.01-10% (weight) usually.
Be used to select the contrast that important relationship be band gap current potential of dyestuff as dopant, the band gap current potential is defined as the highest occupied molecular orbital of molecule and the capacity volume variance between the lowest unoccupied molecular orbital (LUMO).In order effectively energy to be delivered to dopant molecule from material of main part, necessary condition is the band gap of dopant band gap less than material of main part.
Known useful main body and emitting molecule include, but are not limited to be disclosed in those of following document: US-A-4,768,292; US-A-5,141,671; US-A-5,150,006; US-A-5,151,629; US-A-5,294,870; US-A5,405,709; US-A-5,484,922:US-A-5,593,788; US-A-5,645,948; US-A-5,683,823; US-A-5,755,999; US-A-5,928,802; US-A-5,935,720; US-A-5,935,721; And US-A-6,020,078.
The metal complex (general formula E) of oxine and similar derivative constitutes the useful material of main part of a class, and this material of main part can be supported electroluminescence, is specially adapted to the light of emission wavelength greater than 500nm, and is for example green, yellow, orange-yellow and red.
Wherein:
M represents metal;
N is from 1 to 3 integer; With
Z represents to finish independently in each case has at least two atoms that condense the nuclear of aromatic rings.
From above-mentioned clearly as can be seen metal can be monovalence, divalence or trivalent metal.For example, metal can be for example lithium, sodium or a potassium of alkali metal; Alkaline-earth metal is magnesium or calcium for example; Or rare earth metal, for example boron or aluminium.Usually can use the known useful chelated mineral of any monovalence, divalence or trivalent.
The Z formation comprises at least two heterocyclic nucleus that condense aromatic rings, and one of them is pyrroles or azine ring.Other ring comprises aliphat and aromatic rings, if necessary, can condense with two required rings.Do not improve function for avoiding increasing molecular volume (bulk), the annular atoms number maintains 18 or littler usually.
Useful chelating oxine class (oxinoid) compound is described as follows:
CO-1: three oxine aluminium [another name, three (oxine closes) aluminium (III)]
CO-2: two oxine magnesium [another name, two (oxine closes) magnesium (II)]
CO-3: two [benzo the f}8-oxyquinoline closes] zinc (II)
CO-4: two (2-methyl-oxine closes) aluminium (III)-mu-oxo-two (2-methyl oxine closes) aluminium (III)
CO-5: three oxine indiums [another name, three (oxine closes) indium]
CO-6: three (5-methyl oxines) [another name, three (5-methyl-oxine closes) (aluminium (III)]
CO-7: oxine lithium [another name, (oxine closes) lithium (I)]
9,10-two (2-naphthyl) anthracene derivant (general formula F) constitutes the useful material of main part of a class, and this material of main part can be supported electroluminescence, is specially adapted to the light of emission wavelength greater than 400nm, and is for example blue, green, yellow, orange-yellow or red.
R wherein
1, R
2, R
3, R
4, R
5And R
6Represent one or more substituting groups on each ring, be selected from following group respectively:
Group 1: the alkyl of hydrogen or 1 to 24 carbon atom;
Group 2: the substituted aryl of an aryl or 5-20 carbon atom;
Group 3: necessary 4 to 24 carbon atoms of fused aromatic ring that constitute anthryl, pyrenyl Huo perylene base;
Group 4: constitute 5 to 24 the carbon atom heteroaryls that condense heteroaromatic rings of furyl, thienyl, pyridine radicals, quinolyl or other heterocyclic system or the heteroaryl of replacement as required;
The alkoxy amino of 5:1 to 24 carbon atom of group, alkyl amino or arylamino; With
Group 6: fluorine, chlorine, bromine or cyano group.
Indole derivatives (general formula G) constitutes another kind of material of main part, and this material of main part can be supported electroluminescence, is specially adapted to the light of emission wavelength greater than 400nm, and is for example blue, green, yellow, orange-yellow or red.
Wherein:
N is 3 to 8 integer;
Z is O, NR or S;
R ' is a hydrogen; The alkyl of 1 to 24 carbon atom, for example propyl group, the tert-butyl group, heptyl etc.; The hetero-atom substituted aryl of aryl or 5 to 20 carbon atoms is the system of phenyl and naphthyl, furyl, thienyl, pyridine radicals, quinolyl and other heterocycle for example; Or halogen for example chlorine, fluorine; Or formation condenses the atom that aromatic rings needs; With
L is a linkage unit, is made of its conjugation or non-conjugated a plurality of indoles are linked together alkyl, aryl, substituted alkyl or substituted aryl.
A useful indoles example is 2,2 ', 2 " (1,3, the 5-phenylene) three [1-phenyl-1H-benzimidazole].
Desirable fluorescent dopants comprises anthracene, aphthacene, xanthene, perylene, rubrene, cumarin, rhodamine, quinacridone, dicyano methylene pyrylium compound, thiapyran compound, polymethine compound, pyrilium and thiapyrilium compound and carbostyryl compound.
Useful dopant example includes, but are not limited to following:
Other organic emissive material can be a polymer, for example polyphenylene vinylene derivative, dialkoxy phenylene vinylidene, poly radical derivative and poly-fluorene derivative, as by Wolk etc. at US-A-6, those of instructing in 194,119 B1 and the list of references wherein quoted.
If the suitable emitting performance of product OLED device needs like this, although do not show, LEL 26 can comprise two or more emission layers in addition.
On LEL 26, form electron transfer layer 28.Required electron transfer material can use for example evaporation of any suitable method, sputter, chemical vapor deposition, electrochemical method, heat to shift or the LASER HEAT transfer deposits from donor material.The electron transport material that preferred electron transport layer 28 is used is metalchelated oxine compounds, comprises the own chelate of oxine (being also referred to as 8-quinolinol or oxine usually).This compound helps injection and transmission electronic and demonstrates high levels of performance, and is easy to the form of film manufacturing.Exemplary oxine compounds satisfies disclosed in advance structural formula E.
Other electron transport material comprises for example US-A-4,356,429 disclosed multiple butadiene derivatives and the U.S.-A-4,539,507 disclosed multiple heterocycle fluorescent whitening agents.The indoles that satisfies structural formula G also is useful electron transport material.
Other electron transport material can be a polymer, for example polyphenylene vinylene derivative, poly radical derivative, poly-fluorene derivative, polythiophene, polyacetylene, and other conducting polymer organic material for example list in Handbook of Conductive Molecules and Polymers, Vols.1-4, H.S.Nalwa, ed.John Wiley and Sons, those of Chichester (1997).
On electron transfer layer 28, form negative electrode 30.When emission light when the anode, cathode material can be made up of any electric conducting material almost.Desirable material has good filming performance to guarantee and good contact of lower floor's organic layer, promotes the low-voltage electronics to inject, and has good stable.Useful cathode material comprise usually low work function metal (＜3.0eV) or metal alloy.A kind of preferred cathode material is by the Mg:Ag alloy composition, and wherein Yin percentage is 1-20%, as is disclosed in US-A-4,885,221.Another kind of suitable cathode material comprises bilayer, and this bilayer is made up of than low work function metal or slaine thin layer that thick-layer covers conducting metal.A kind of such negative electrode is by forming for the LiF thin layer of thicker aluminium lamination subsequently, as is disclosed in US-A-5,677,572.Other useful cathode material includes, but are not limited to US-A-5,059,861; US-A5,059,862; And US-A-6,140,763 those disclosed.
When observing the light emission, that negative electrode must be transparent or approaching transparent by negative electrode.For this is used, metal must be approach or people must use the combination of transparent conductive oxide or these materials.Optically transparent negative electrode is disclosed in US-A-5,776,623 in more detail.Cathode material can be deposited by evaporation, sputter or chemical vapor deposition.In case of necessity, can realize forming patterns by many known methods, this method includes but not limited to by the mask deposition, as being disclosed in US-A-5,276,380 and the whole shade of EP 0 732 868 is sheltered, laser burn into and selective chemical vapour deposition.
Referring to Fig. 2, show an embodiment cross-sectional view that makes by the emission protective layer on LEL according to the present invention with the OLED device that improves performance.In OLED device 200, emission protective layer 32 is formed on the LEL 26 and electron transfer layer 28 times.Emission protective layer 32 comprises that the material of one or more selections is to resist the LEL surface contamination and to reduce electroluminescence loss in the OLED device.The term " surface contamination " that this specification uses is meant except constituting the body layer molecule, the molecule of any chemistry or physical absorption on the laminar surface of checking.Surface contamination can not easily be removed, even at pressure about 10
-6Under the vacuum system of holder.If the surface is in pressure about 10
-6Following 1 second of filler ring border can obtain the individual layer contaminant, and it is 1 pollutant that adhesion coefficient is provided.The LEL surface is very sensitive to any pollution.Lip-deep several individual layer contaminant may cause the change of OLED device EL performance.If LEL is exposed to environmental condition, may observe serious luminous decline.Therefore, reduce the proper method that surperficial exposure time is protection LEL.From the viewpoint of making, inevitably the delay of a period of time will occur in that LEL forms and LEL on lower floor form between, particularly in the technology of making full-color display.In other words, newly depositing LEL has to be exposed to the environment that has the different dividing potential drops of other material in the deposition chamber make whole colored LEL until finishing on other sub-pixel.Sometimes, LEL, for example radiant transfer LEL is for next step manufacturing environmental condition of having to temporarily be exposed to.Therefore, forming emission protective layer 32 before further exposing on LEL 26 is a kind of LEL of protection and the method for improving OLED device EL performance.
Emission protective layer 32 may comprise any or multiple material, and this material can protect LEL below not to be subjected to surface contamination in fact.Consider convenience and with the compatibility of making the OLED device, preferred material is an organic material.Because emission protective layer 32 directly contacts LEL 26; the material that is used to form emission protective layer 32 should have the ionization potential that is equal to or greater than material of main part among the LEL 26, should have the optical band gap that is equal to or greater than material of main part among the LEL26 so that do not change original glow color of device.Preferably, the optical band gap of emission protective layer 32 is greater than 3.0eV.Emission protective layer 32 should have good film and form performance to reduce the permeability of pollutant.In addition, emission protective layer 32 is preferably more hydrophobic than LEL 26.In making full-color display, blue material of main part can be advantageously used in forming emission protective layer 32.In another device was made, hole blocking layer was used for this device.In this case, the material that is used to form hole blocking layer also can be advantageously used in forming emission protective layer 32.Thick emission protective layer can be protected LEL effectively.Yet because the emission protective layer can not play the required effect of ETL inevitably, the possibility of result is that thick emission protective layer has bad electronic transmission performance.On the other hand, thin emission protective layer does not hinder electronic transmission performance, but a little less than the defencive function.When considering these factors in the present invention, selecting emission protective layer 32 is that 0.1-50nm is thick, and preferred 1.0-5.0nm is thick.Emission protective layer 32 can be formed by two or more different materials of sequential aggradation or codeposition.Required luminous protective material can deposit with for example thermal evaporation of any suitable method, electron-beam vapor deposition method, ion sputtering or other film-forming method.In order to be fit to the organic layer deposition, emission protective layer 32 preferably forms by thermal evaporation.Deposition emission protective layer 32 on LEL 26.Forming material that the emission protective layer contains one or more selections on the luminescent layer resisting the surface contamination on the organic luminous layer, and guaranteeing that surface contamination is not when providing this layer.
In addition, during making polymer OLED, the LEL of rotary coating or inkjet printing has to anneal a period of time before the manufacturing step that carries out subsequently.In this case, may adopt pollutant to introduce and construct the LEL surface again, this pollutant not only exists in residual solvent and in environmental condition.Therefore, depositing emission protective layer 32 before annealing on LEL 26 is a kind of LEL of protection and the method for improving polymer OLED EL performance.
When making polymer OLED, the thickness of required emission protective layer can be from 0.5-100nm, preferably from 1.0-50nm.Required emission protective layer can form before heating anneal LEL by rotary coating, ink jet printing or other method that is fit on the luminescent layer.Emission protective layer 32 can be single or multiple lift in polymer OLED.
Referring to Fig. 3, also relate to Fig. 2, shown the block diagram of the step that comprises an embodiment of organic luminescent device method formed according to the present invention.When technology begins (step 40), on base material 10, form the formation pattern (step 42) of anode or anode 20.Alternatively, the part that anode 20 can base material 10, for example OLED base material.Choose wantonly then and on anode 20 all surfaces, form hole injection layer 22 (step 44).On hole injection layer 22 all surfaces, form hole transmission layer 24 (step 46) then.On hole transmission layer 24, form LEL26 (step 48) then.On LEL 26, form then according to emission protective layer 32 of the present invention (step 50).Emission protective layer 32 comprises that the material of one or more selections is to resist the surface contamination of LEL 26.On emission protective layer 32, form electron transfer layer 28 (step 52).Deposition cathode layer or a series of negative electrode 30 (step 54) on electron transfer layer 28 then.Other step can be arranged, for example deposition protective layer (step 56) before method finishes.
Referring to Fig. 4, also relate to Fig. 2, shown the block diagram of the step that comprises another embodiment of full color organic luminescent device method formed according to the present invention.When technology begins (step 60), on base material 10, form anode pattern 20 (step 62).Alternatively, the part that anode 20 can base material 10, for example OLED base material.Choose wantonly then and on anode 20 all surfaces, form hole injection layer 22 (step 64).On hole injection layer 22 all surfaces, form hole transmission layer 24 (step 66) then.On the hole transmission layer 24 of a sub-pixel, form a LEL 26 then in the pattern mode.Form on the pattern at figuratum LEL 26 then and form according to emission protective layer 32 of the present invention (step 70).On the hole transmission layer 24 of another sub-pixel, form another LEL 26 (step 72), on figuratum LEL 26, form then according to emission protective layer 32 of the present invention (step 74) in the pattern mode.On the hole transmission layer 24 of another sub-pixel, form still another LEL26 (step 76), on figuratum LEL 26, form then according to emission protective layer 32 of the present invention (step 78) in the pattern mode.On whole figuratum emission protective layers 32, form electron transfer layer 28 (step 80) for whole sub-pixels.Deposition cathode layer or a series of negative electrode 30 (step 82) on electron transfer layer 28 then.Other step can be arranged, for example deposition protective layer (step 84) before method finishes.
Embodiment
Embodiment
The present invention may be better understood and its advantage by following invention and comparative example.
Embodiment 1(inventive embodiments)
The OLED device that has the emission protective layer that satisfies requirement of the present invention with following method construct:
1. vacuum moulding machine indium tin oxide target (ITO) forms the thick transparency electrode of 34nm on clean glass baseplate.About 60 Ω of the sheet resistance of ITO layer/square.
2. use the ITO surface of the above-mentioned preparation of plasma oxygen etch processes, subsequently as being disclosed in US-A-6, fluorocarbon polymer (CFx) layer of 208,075 such plasma deposition 1.0nm.
3. pass through about 10
-6The base material of above-mentioned preparation is further handled in holder down, and vacuum moulding machine is from the 75nm HTL of 4,4 '-two [N-(1-the naphthyl)-N-phenylamino] biphenyl (NPB) in heating evaporation ware (boat) source.
4. comprising the application point (coating station) in heating evaporation ware source, on HTL vacuum moulding machine 20nm three (oxine closes) aluminium (III) (Alq) coating as LEL.
5. comprising the application point in heating evaporation ware source at once after the step 4, vacuum moulding machine 2nm2-on LEL (1, the 1-dimethyl ethyl) 9,10-two (2-naphthyl)) anthracene (TBADN) coating is as the emission protective layer.
6. above-mentioned base material is exposed to 20 ℃ and relative humidity and was higher than 45% environmental condition following 5 minutes, gets back under the vacuum then.
7. at the application point that comprises heating evaporation ware source, at the ETL that launches vacuum moulding machine 38nm Alq on the protective layer.
8. at application point, on ETL, deposit 210nm cathode layer (one of them comprises silver, and one of them comprises magnesium) with independent tantalum boat.Cathode layer is 20: 1 magnesium of volume ratio and silver.The OLED device light-emitting area that forms is 0.1cm
2
9. shift the OLED device and be used for encapsulation to drying box.
Embodiment 2(comparative example)
Make the OLED device according to disclosed mode among the embodiment 1, difference is to omit step 5 (deposition emission protective layer), and LEL is thick in the step 7 changes 40nm into from 38nm.
Embodiment 3(comparative example)
Make the OLED device according to disclosed mode among the embodiment 1, difference is to omit step 5 (deposition emission protective layer) and step 6 (being exposed to environmental condition), and LEL is thick in the step 7 changes 40nm into from 38nm.
By at room temperature electrode being applied 20mA/cm
2Constant current, and measure brightness and color and device among the test implementation example 1-3.Table 1 demonstrates the result.
Table 1
Embodiment LEL emission protective layer environmental exposure (＞45%RH) ETL (nm) 20mA/cm
2Following 20mA/cm
2Down
(type) be the luminosity of (2nm) voltage (V) (min) (20nm)
(cd/m
2)
1 (invention) Alq TBADN 5 Alq (38nm) 7.4 440
2 (contrast) Alq-5 Alq (40nm) 7.5 219
3 (contrast) Alq--Alq (40nm) 7.3 516
The obvious thick TBADN of 2nm as the emission protective layer can protect LEL not to be subjected to surface contamination effectively and reduce luminosity loss.Although having the device luminosity of emission protective layer is about 85% of following device luminosity: this device is not launched protective layer and do not had any exposure (embodiment 3) of its LEL to environmental condition, the device (embodiment 1) with emission protective layer can have after LEL is exposed to environmental condition does not launch 2 times of high luminosity of protective layer device (embodiment 2).
Embodiment 4(inventive embodiments)
The OLED device that has the emission protective layer that satisfies requirement of the present invention with following method construct:
1. vacuum moulding machine indium tin oxide target (ITO) forms the thick transparency electrode of 30nm on clean glass baseplate.The ITO sheet resistance be about 100 Ω/square.
2. use the ITO surface of the above-mentioned preparation of plasma oxygen etch processes, subsequently as being disclosed in US-A-6, fluorocarbon polymer (CFx) layer of 208,075 such plasma deposition 1.0nm.
3. pass through about 10
-6The base material of above-mentioned preparation is further handled in holder down, and vacuum moulding machine is from the 75nm HTL of 4,4 '-two [N-(1-the naphthyl)-N-phenylamino] biphenyl (NPB) in heating evaporation ware source.
4. comprising the application point in heating evaporation ware source, on HTL vacuum moulding machine 20nm three (oxine closes) aluminium (III) (Alq) coating as LEL.
5. comprising the application point in heating evaporation ware source at once after the step 4, on LEL vacuum moulding machine 2nm two-(2-methyl oxine closes) (4-phenylphenolato) aluminium (B-Alq) coating as the emission protective layer.
6. above-mentioned base material is exposed to following 10 minutes of the environmental condition of 20 ℃ and relative humidity about 30%, gets back under the vacuum then.
7. at the application point that comprises heating evaporation ware source, at the ETL that launches vacuum moulding machine 40nm Alq on the protective layer.
8. at application point, on ETL, deposit 210nm cathode layer (one of them comprises silver, and one of them comprises magnesium) with independent tantalum boat.Cathode layer is 20: 1 magnesium of volume ratio and silver.The OLED device light-emitting area that forms is 0.1cm
2
9. shift the OLED device and be used for encapsulation to drying box.
Embodiment 5(comparative example)
Make the OLED device according to embodiment 4 disclosed methods, difference is to omit step 5 (deposition emission protective layer).
Embodiment 6(comparative example)
Make the OLED device according to embodiment 4 disclosed methods, difference is to omit step 5 (deposition emission protective layer) and step 6 (being exposed to environmental condition).
By at room temperature electrode being applied 20mA/cm
2Constant current, and measure brightness and color and device among the test implementation example 4-6.Table 2 demonstrates the result.
Table 2
Embodiment LEL emission protective layer environmental exposure ETL 20mA/cm
220mA/cm
2
(type) be (2nm) (～30%RH) luminosity under the voltage (V) under (40nm) (20nm)
(min) (cd/m
2)
4 (invention) Alq B-Alq, 10 Alq 9.3 490
5 (contrast) Alq-10 Alq 8.9 341
6 (contrast) Alq--Alq 10.8 591
Obviously the thick B-Alq of 2nm as the emission protective layer also can protect LEL not to be subjected to surface contamination and to reduce luminosity loss effectively.
Embodiment 7 (inventive embodiments)
Make the OLED device according to embodiment 1 disclosed method, difference is that step 6 changes into:
6. evaporate the 0.1nm thick film of 4-(dicyano methylene)-2-tert-butyl group 6-(1,1,7,7-tetramethyl julolidyl-9-enyl)-4H-pyrans (DCJTB) to produce the about 10-of DCJTB molecule dividing potential drop in the vacuum from the application point that comprises heating evaporation ware source
6The environment of Torr.Prevent that the DVJTB molecule directly is deposited on the organic layer surface.This is the simulation of full-color display manufacturing process.Finish the DCJTB evaporation process in about 10min.
By electrode is at room temperature applied 20mA/cm
2Constant current test original device performance.Driving voltage is 8.3V, and luminosity is 628cd/m
2, luminous efficiency is 3.1cd/A.After the initial trial, in 70 ℃ of baking ovens with 20mA/cm
2The running device carries out stability test.Do not have original decline in first hour of test, move 190 hours continuously after original brightness descend 20%.
Embodiment 8(comparative example)
Make the OLED device according to 7 disclosed methods, difference be to omit step 5 (deposition emission protective layer) and in step 7 LEL thickness change 40nm into from 38nm.
By electrode is at room temperature applied 20mA/cm under the temperature
2Constant current test original device performance.Driving voltage is 8.0V, and brightness is 598cd/m
2, luminous efficiency is 3.0cd/A.After the initial trial, in 70 ℃ of baking ovens with 20mA/cm
2The running device carries out stability test.It is about 5% to test in first hour original decline, move 130 hours continuously after original brightness descend 20%.
Embodiment 7 and 8 shows if the surface is placed on wait next step in the vacuum chamber, still surface contamination may take place.This pollution may not cause bad original performance, but may cause relatively poor operational stability.The emission protective layer can be protected LEL not to be subjected to surface contamination effectively and keep good operational stability.
Other purpose of the present invention and feature comprise as follows.
Organic luminescent device is wherein launched protective layer and is comprised TBADN and B-Alq.
Method wherein forms the emission protective layer by evaporation.
Method is wherein launched protective layer thickness from 0.1 to 10nm.
Method is wherein launched protective layer thickness from 0.5 to 5.0nm.
Method is wherein launched protective layer and is comprised TBADN and B-Alq.
Method wherein forms the emission protective layer by evaporation.
Method, wherein launching protective layer can be by two or more different material of sequential aggradation or codeposition Material forms.
Method, wherein each emission protective layer thickness is from 0.1 to 10nm.
Method, wherein each emission protective layer thickness is from 0.5 to 5.0nm.
Method is wherein launched protective layer and is comprised TBADN and B-Alq.
Method is wherein launched protective layer and is formed by spin coating or ink jet printing.
Method is wherein launched protective layer thickness from 0.5 to 100nm.
Method is wherein launched protective layer thickness from 0.1 to 50nm.
Claims (10)
1. have the organic luminescent device that improves performance, comprise:
A) anode that on base material, forms;
B) hole transmission layer that on anode, forms;
What c) form on hole transmission layer is used for compound in response to both hole and electron and luminescent layer generation light;
D) the emission protective layer that forms on luminescent layer is wherein launched material that protective layer comprises one or more selections resisting the surface contamination on the organic luminous layer, and guarantees that surface contamination is not when providing this layer;
E) electron transfer layer that on the emission protective layer, forms; With
F) negative electrode that on electron transfer layer, forms.
2. the organic luminescent device of claim 1, wherein luminescent layer comprises at least a material of main part and a kind of dopant and emission protective layer and comprises the material that one or more ionization potentials are equal to or greater than the luminescent layer material of main part.
3. the organic luminescent device of claim 1 is wherein launched the protective layer optical band gap and is higher than 3.0eV.
4. the organic luminescent device of claim 1, it is more hydrophobic than luminescent layer wherein to launch protective layer.
5. the organic luminescent device of claim 1, wherein launch protective layer thickness from 0.1 to 10nm.
6. the organic luminescent device of claim 5, wherein launch protective layer thickness from 0.5 to 5.0nm.
7. prevent to have the method for the pollution of the luminescent layer that the organic luminescent device that improves performance uses, comprise:
A) the emission protective layer that forms on luminescent layer is wherein launched material that protective layer comprises one or more selections resisting the surface contamination on the organic luminous layer, and guarantees that surface contamination is not when providing this layer;
B) finish organic luminescent device.
8. the method for claim 7, wherein launching protective layer can be formed by two or more different materials of sequential aggradation or codeposition.
9. prevent to have the method for pollution of the panchromatic emission pixel of performance improvement, comprise:
A) on the sub-pixel of selecting, form the first colour light emitting layer;
B) form the emission protective layer on the colored emission layer on the identical subpixel area of employing same pixel technology, wherein launch material that protective layer comprises one or more selections resisting the surface contamination on the organic luminous layer, and guarantee that surface contamination is not when providing this layer;
C) for each different color emission layer repeating step a) and b)
D) finish organic luminescent device.
10. prevent to have the method for the pollution of the luminescent layer that the polymer organic luminescent device that improves performance uses, comprise:
A) before thermal annealing, form the emission protective layer comprising on the luminescent layer of one or more materials, wherein launch material that protective layer comprises one or more selections resisting the surface contamination on the organic luminous layer, and guarantee that surface contamination is not when providing this layer;
B) thermal annealing emission protective layer; With
C) finish the polymer organic luminescent device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/431,303 US6853133B2 (en) | 2003-05-07 | 2003-05-07 | Providing an emission-protecting layer in an OLED device |
| US10/431303 | 2003-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1575072A true CN1575072A (en) | 2005-02-02 |
| CN1575072B CN1575072B (en) | 2010-05-12 |
Family
ID=32990535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100387059A Expired - Lifetime CN1575072B (en) | 2003-05-07 | 2004-04-30 | Organic light emitting device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6853133B2 (en) |
| EP (1) | EP1475850A3 (en) |
| JP (1) | JP2004335475A (en) |
| KR (1) | KR20040095743A (en) |
| CN (1) | CN1575072B (en) |
| TW (1) | TWI344316B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7023013B2 (en) * | 2004-06-16 | 2006-04-04 | Eastman Kodak Company | Array of light-emitting OLED microcavity pixels |
| JPWO2006070712A1 (en) * | 2004-12-28 | 2008-06-12 | 出光興産株式会社 | Luminescent ink composition for organic electroluminescence device |
| JP4305425B2 (en) * | 2005-07-20 | 2009-07-29 | セイコーエプソン株式会社 | Electronic devices and electronic equipment |
| US20080238297A1 (en) * | 2007-03-29 | 2008-10-02 | Masuyuki Oota | Organic el display and method of manufacturing the same |
| JP2009026986A (en) | 2007-07-20 | 2009-02-05 | Seiko Epson Corp | Organic el device, manufacturing method therefor, and electronic device |
| JP2009111023A (en) * | 2007-10-26 | 2009-05-21 | Toshiba Matsushita Display Technology Co Ltd | Organic el display device and manufacturing method thereof |
| TWI470787B (en) * | 2008-03-31 | 2015-01-21 | Japan Display Inc | Organic el display device and method of manufacturing the same |
| KR101009644B1 (en) * | 2008-08-26 | 2011-01-19 | 삼성모바일디스플레이주식회사 | Donor substrate for laser induced themal imaging and fabrication method for organic light emitting diode using the same |
| JP4775863B2 (en) * | 2008-09-26 | 2011-09-21 | 東芝モバイルディスプレイ株式会社 | Organic EL display device and manufacturing method thereof |
| JP4775865B2 (en) * | 2009-01-14 | 2011-09-21 | 東芝モバイルディスプレイ株式会社 | Organic EL display device and manufacturing method thereof |
| US20110108812A1 (en) * | 2009-11-06 | 2011-05-12 | Shiro Sumita | Organic el device |
| JP2011191739A (en) * | 2010-02-16 | 2011-09-29 | Toshiba Mobile Display Co Ltd | Organic electroluminescence device |
| WO2018181049A1 (en) | 2017-03-30 | 2018-10-04 | 株式会社クオルテック | Method for manufacturing el display panel, manufacturing device for el display panel, el display panel, and el display device |
| US11569448B2 (en) | 2018-02-19 | 2023-01-31 | Samsung Display Co., Ltd. | Cross-linkable arylamine-based compound, polymer obtained therefrom, light-emitting device including the polymer, and electronic apparatus including the light-emitting device |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769292A (en) | 1987-03-02 | 1988-09-06 | Eastman Kodak Company | Electroluminescent device with modified thin film luminescent zone |
| US6046543A (en) * | 1996-12-23 | 2000-04-04 | The Trustees Of Princeton University | High reliability, high efficiency, integratable organic light emitting devices and methods of producing same |
| US5920080A (en) * | 1997-06-23 | 1999-07-06 | Fed Corporation | Emissive display using organic light emitting diodes |
| KR100244185B1 (en) * | 1997-09-18 | 2000-02-01 | 구자홍 | Organic electroluminescence device and method for fabricating the same |
| JP2000068060A (en) * | 1998-08-13 | 2000-03-03 | Tdk Corp | Organic el element and its manufacture |
| JP2001176670A (en) * | 1999-12-14 | 2001-06-29 | Morio Taniguchi | Light transmission type organic electroluminescent element and its manufacturing method |
| JP4068279B2 (en) * | 2000-02-23 | 2008-03-26 | パイオニア株式会社 | Organic electroluminescence device |
| KR100874290B1 (en) * | 2001-02-14 | 2008-12-18 | 산요덴키가부시키가이샤 | Organic Electroluminescent Devices, Luminescent Materials, and Organic Compounds |
| JP4675513B2 (en) * | 2001-07-10 | 2011-04-27 | 新日鐵化学株式会社 | Aluminum chelate complex and organic electroluminescence device |
| WO2003022008A1 (en) * | 2001-08-29 | 2003-03-13 | The Trustees Of Princeton University | Organic light emitting devices having carrier transporting layers comprising metal complexes |
| JP2003077669A (en) * | 2001-09-03 | 2003-03-14 | Toppan Printing Co Ltd | High polymer electroluminescent element and manufacturing method therefor |
| US20030166311A1 (en) * | 2001-09-12 | 2003-09-04 | Seiko Epson Corporation | Method for patterning, method for forming film, patterning apparatus, film formation apparatus, electro-optic apparatus and method for manufacturing the same, electronic equipment, and electronic apparatus and method for manufacturing the same |
| JP2003092186A (en) * | 2001-09-17 | 2003-03-28 | Toyota Central Res & Dev Lab Inc | Organic electroluminescent element |
| JP2003303681A (en) * | 2002-04-09 | 2003-10-24 | Sharp Corp | Organic led element and its manufacturing method as well as organic led display device |
| JP2004220888A (en) * | 2003-01-14 | 2004-08-05 | Shoen Kagi Kofun Yugenkoshi | Double-sided display structure of transparent organic light emitting diode, and manufacturing method of same |
| JP3891430B2 (en) * | 2003-01-23 | 2007-03-14 | 富士電機ホールディングス株式会社 | Organic EL light emitting device and method |
-
2003
- 2003-05-07 US US10/431,303 patent/US6853133B2/en not_active Expired - Lifetime
-
2004
- 2004-03-22 TW TW093107649A patent/TWI344316B/en not_active IP Right Cessation
- 2004-04-26 EP EP04076248A patent/EP1475850A3/en not_active Withdrawn
- 2004-04-30 CN CN2004100387059A patent/CN1575072B/en not_active Expired - Lifetime
- 2004-05-07 JP JP2004138823A patent/JP2004335475A/en active Pending
- 2004-05-07 KR KR1020040032376A patent/KR20040095743A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004335475A (en) | 2004-11-25 |
| EP1475850A2 (en) | 2004-11-10 |
| US6853133B2 (en) | 2005-02-08 |
| KR20040095743A (en) | 2004-11-15 |
| TWI344316B (en) | 2011-06-21 |
| CN1575072B (en) | 2010-05-12 |
| TW200501812A (en) | 2005-01-01 |
| US20040222738A1 (en) | 2004-11-11 |
| EP1475850A3 (en) | 2012-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100344009C (en) | Laser thermal transfer from donor element contg hole transmitting layer | |
| CN1551689A (en) | Highly transparent top electrode for OLED device | |
| US7701131B2 (en) | Organic electroluminescent element comprising a carbonyl matrix material | |
| CN1849719A (en) | Stabilized OLED device | |
| CN1957486A (en) | Tandem OLED having stable intermediate connectors | |
| CN1310772C (en) | Laser thermal transfer donor contg separated adulterant coating | |
| CN1856888A (en) | OLED having non-hole blocking buffer layer | |
| EP2456617B1 (en) | Oled device with stabilized yellow light-emitting layer | |
| CN1436025A (en) | Method for mfg. electroluminescent display device | |
| CN1610466A (en) | Cascaded organic electroluminescent device having connecting units with n-type and p-type organic layers | |
| CN1469496A (en) | Apparatus containing green organic light emitting diode (LED) | |
| CN1871323A (en) | Electroluminescent device with anthracene derivative host | |
| CN1436027A (en) | Organic electroluminescent device used with Mg cathode and with adhesion-promoting layer | |
| CN1902769A (en) | Using a crystallization-inhibitor in organic electroluminescent devices | |
| CN1906976A (en) | Organic electroluminescent element having two light-emitting layers with electron blocking layer interposed therebetween | |
| CN1756824A (en) | Organic electroluminescent element | |
| CN1496208A (en) | Performance-improved white organic luminescent device | |
| CN1428874A (en) | Mfg. method of vacuum in situ of OLED device | |
| CN1943057A (en) | Oled device using reduced drive voltage | |
| CN1871324A (en) | Oled device with asymmetric host | |
| CN1934215A (en) | Electroluminescent device with anthracene derivative host | |
| CN1198651A (en) | multi-color light emitting device | |
| CN1910961A (en) | Organic electroluminescent element and display device | |
| CN1457219A (en) | Manufacturing method for normal position of OLED device sensitive to moisture or oxygen | |
| CN1532959A (en) | P type material and mikture used for electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GLOBAL OLED TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: EASTMAN KODAK COMPANY Effective date: 20100528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: NEW YORK, USA TO: DELAWARE, USA |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100528 Address after: Delaware, USA Patentee after: Global OLED Technology LLC Address before: American New York Patentee before: Eastman Kodak Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |